By comparing his complete star chart with more fragmentary measurements ... Reversing time, they wound the stars of the Corona Borealis back to the year when the luminaries shone in the sky ...

Chinese scientists analyzed astronomer Shi Shen’s record of the stars and found it to predate previously known Greek ...

The Dunhuang map (not the chart studied in the new research) is an early star map from China dating to the Tang Dynasty (A.D. 618 to 907). | Credit: CPA Media Pte Ltd via Alamy The oldest star ...